Question

B=3x+9xy solv for x

Answer 1

the answer is  B = 12 x

Answer 2

x=
`(B)/(3(1 + 3y))`

or

x =
`(B)/((3 + 9y))`

Explanation:

The given equation is B = 3x + 9xy

We have to solve for x.

B = 3x + 9xy

Let's factor the above equation.

B = 3x(1 + 3y)

We need to solve for x.

So, divide both sides by (1 + 3y), we get

`(B)/((1+ 3y)) = (3x(1+3y))/((1 +3y))`

`(B)/((1 + 3y)) = 3x`

This can be written as

`3x = (B)/((1 + 3y))`

Now dividing both sides by 3, we get

x=
`(B)/(3(1 + 3y))`

or

x =
`(B)/((3 + 9y))`